An item of any peripheral shape usually having one flat or spherical surface and a centrally located hole. It is designed for applications involving moving (kinetic) loads. Except for items fabricated from bearing quality synthetic (plastic) or composed of multilayer material, one bearing surface must either have a specific surface finish designation of 32 microinch (0.8 micrometre) or less, arithmetical average (aa) (arithmetic mean deviation) or one of the following conditions: be lapped or ground; have visible or detectable means of lubrication; grooves, indentations; or self-lubrication. The thickness must not exceed 25 percent of the outside diameter of the shortest distance between peripheral flats (when thickness and/or outside diameter is designated as a tolerance dimension, the maximum dimension will be used to determine compliance). Excludes straight, tubular (without flange) items having a bearing surface(s) parallel to the axis of the bore only. See also washer, flat and spacer, sleeve.
Classification: Thrust ball bearings
NSN 7035-01-551-1240
NSN 6130-01-099-6274
NSN 5930-01-660-0621
NSN 6320-01-607-1491
NSN 6620-01-078-6372
NSN 5925-00-569-6122
NSN 5855-01-573-4289
NSN 5930-01-594-9313
NSN 5985-00-562-6277
NSN 5945-01-483-3606
NSN 6130-00-153-1338
NSN 7035-01-633-1920